If you encounter a noise on your car, you are right to worry about it and take it seriously, although it is possible that nothing significant will come from it, it is also conceivable that it is the first indication of a more significant service. A noise that shows up on a door of your Mercedes C class fortunately shows a slight change / repair, instead of a complicated repair. In order to help you in your procedure, we have chosen to write this document to provide you the most likely solutions to your issue. First, we will take a look at the different source noises of air in the door of your Mercedes C class, then hinge noises and finally at other possible possibilities.door-noise-mercedes-c-class

Door air noise Mercedes C class

Plastic air cache noise

If you experience air noise on the doors of your Mercedes C class, it is plausible that it is linked to some plastic covers on the interior sides of your door. These can come loose, hole, fall and thus produce an air intake that will obviously make a significant and disagreeable air noise in the passenger compartment. To confirm that you don’t have this problem on your Mercedes C class, open your doors and examine the sides of them carefully, see if all the covers are properly installed.

Air noise seal

Air noise at the doors of your Mercedes C class can also be connected to a gasketfailing or overused. In fact, the door seal, in addition to have a defensive purpose against moisture infiltration, also has a protective purpose for air inlets in the passenger compartment. When it is worn, it will not settle and therefore no longer give a perfect seal between the door and the car body. To verify its state, there are two solutions, first, visually check the state of the seal and for the second test, install someone inside the passenger compartment and door by door, car closed, sprayed with water the seals to see if water enters. If you are in this case, go to your auto technician to have your seal changed and the door noise on your Mercedes C class adjusted.

Hinge noise door hinge Mercedes C class

Door noise Mercedes C class, dry hinge

It is possible, based on the kind of of sound you experience, that your hinge is at the origin of them. If this is the case, you will have to verify it by opening your door and checking that the door noise on your Mercedes C class comes from a hinge that is too dry. To solve this issue, first try to grease the hinge, in most cases this is enough to fix your problem.

Noise porte Mercedes C class, worn hinge

If you have followed our first advice regarding your hinge, but the problem still lasts, it is plausible that your hinge is worn out and necessitates a swap. In this case, verify that despite the lubrication it still generates a lot of noise when opening and closing. You should feel a “clack” and restraint in the movement. If this Mercedes C class noise is your problem, change your hinge.

Other possibilities

Internal part of the damaged window regulator

In the other possibilities that can generate door noise on Mercedes C class, we can first think of the window lift, actually, after the hinge, it is the second sophisticated system of the door. If broken, it can cause vibration or even air noise. To verify its state, remove the door trim and check that no parts are broken.

unscrewed speaker

Finally, one of the last plausible alternatives for Mercedes C class door noise would come from a from your vehicle’s audio speakers. In fact, they take place in the door and can, over time, loosen and generate a heavy vibration and risk damaging themselves if you do not fix them again. Same procedure, you will have to dismantle the door trim to check its correct positioning.
If you can’t find solutions among this document, don’t hesitate to take your car to your auto technician who can test your car in more detail to discover what the particular problem is that you know.